1. Wang, C., Peng, M., Gao, Y.: The study of unbalanced phase shift keying signal modulation recognition algorithm. Signal Inf. Process. 43(9), 28–32 (2013)
2. Haiyuan, X., Huang, Z., Zhou, Y.: Detection and performance analysis of UQPSK DSSS signals in satellite communication applications. Sig. Process. 24(3), 361–365 (2008)
3. Shi, S., Zhang, T., Xin, X.: The study of detection of four order cumulants of the UQPSK signal. Sci. Technol. Eng. 14(20), 257–262 (2014)
4. Weber, C.L.: Candidate receivers for unbalanced QPSK. In: International Telemetering Conference, vol. XII, pp. 455–464 (1976)
5. Levitt, B.K., Lesh, J.R., Springett, J.C.: Shuttle/TDRSS Ku-Band telemetry study. Final Report 900-742, Jet Propulsion Laboratory, Pasadena, California (1976)